Sealing-in machine.



' No. 833,131. PATENTEDOGT.9]1906.

H. GJFERGUSON.

SEALING IN MACHINE.

APPLICATION FILED OOT.1l, 1905.

2'SHEBTS-SHEET 1.

INVENTOR non/1m Hugh G.Ferguson. By

WITNESSES: .WM/v.

No. 833,131.- PATENTED OCT. 9, 1906 H. G. FERGUSON. SEALING IN MACHINE.

APPLICATION FILED 00111, 1905.

WITH/E8858: I INVENTOR Hugh 2 SHEETS-SHEET Z.

- canes ST EN OFF-101% HUGH G. FERGUSON, OF ST. LOUIS, MISSOURI, ASSIGNOR TO UNITED STATES INOANDESCEHT LAMP COMPANY, OF ST. LOUIS, MISSOURI,

A CORPORATION OF MISSOURI.

, SEALiNG-IN MACHINE.

na eealsi;

I, Specification of Letters Patent.

Patented 0017.9, 1906.

' Application filed October 11. 1905. Serial No. 282.256,

"Z all whom it may concern:

- Be it known that I, HUGH G. FERGUSON,

a citizen of the United States, residing at the city of St.' Louis, in the State of Missouri, have invented a certain new and useful Sealing-In Machine, of which the following is such a full, clear, and exact description as will enable any oneskilled in the art to which i it appertains to make and uselthe same, reference being had to the accompanying drawings, forming-part of this specification.

My invention relates more particularly to a machine for sealing the filament support or stem of an-incandescent electric lamp into the neck of the bulb, and has-for its object to provide a machine ofthis character which will be simple in construction and efi'ective in operation toheat the neck of the lampuniformly' around its entire circumference to seal the stem into the neck. I

In the drawings, in which like characters of reference refer to similar parts in the different views, Figure 1 is a side elevation of the apparatus; and Fig. 2 is a top plan view,

artly in section, thereof.

is the table or platform upon which the various parts are supported, and 11 is a cylindrical standard carried by the table. This standard is provided with upper and lower flanges 12 and'with a collar 13, sleeved thereon. This collar carries four laterally-ex tending arms 14. Each of these arms is provided with a cross-piece 15 and two uprights 16. A lamp-rack 17 is slidingly mounted on each set of uprights 16 and made adjustable by a set-screw 18. This lamp-rack is of wellknown construction, and it need not be further described here.

20 represents rods passing through perforations m the ends of the arms 14 and crosspieces 15, in which they are held by friction and adapted to receive on their upper ends the lilament supports or stems '21 of the lamps. The lilament support or stem is thus held in the proper position for sealing in the necks of the lamps 22. i

Aforked frame 23 is attached to a collar 24, sleeved upon the standard 11, to support the collar 13. This frame carries at its lower end a link 25, attached to one end of a bent lever 26, pivoted at 27 to the table 11) and provided at its outer end with a weight 2.5. is a rod for operating this device,-

heremand is provided with a lateral extension 36 the lamp.

after described. Each of the arms 14' is providedwith an extension 30, which is adapted to engage with a stop 31, pivoted at 32 to an upright 33, carried on the table 10. This stop is yieldingly supported by a spring 35 whereby it may be operated.

is a stud carried by the lower side of the table 10 and havingpivotally mounted upon it a swinging member 41. This member 41 carries at its ends two uprights 42, one

of which passes upward through the cylindrical support 11. Slots 44 are provided in the table 10 to permit ofthe movement of these uprights and-the member 41, which carries thein. Each of the uprights 42 is provided with air-nozzles 45, controlled by valves 46, and with a lateral extension 47, carrying gas-nozzles 48, controlled by valves 49. indicates flexible conduits for conveying the compressed air andgas to these nozzles.

52 is a bracket carried at the lower side of the'table 10 and provided with a shaft 53, upon which is mounted an eccentric 54, connected by an arm with the member 41. The shaft 53 also carries a pulley 56, supplied with power from any suitable source by means of a belt 57.

In the operation of my invention the lampbulb is first placed in the lamp rack or holder 17 and the filament support or stem 21 inserted therein by means of the sliding rodsZO in proper position to be sealed to the neck of During this time the collar lSis held in its upper position, as shown in Fig. 1., by means of the weight 28. By means of the stop 31 one of the arms 14. is then brought into proper position between the nozzles or burners 45 and 48. In this position the lower end or neck of the lamp is somewhat above the line of the flame, but may be. brought into exact alinement with the [lame from the burners by moving the collar 13 downward on the support 11 by means of the rod '29. The eccentric 54 oscillates the pivoted member 41 backward and forward todistributethe heat evenlyaroum: the neckof the lamp, thus effectually sealing in thestem. While one seal is being completed another bulb and stem are prepared on one of the other arms 14 of the nmehine and are read for the operation of sealing by the time the first operation is completed. It will be seen 4 them.

holders carried thereby, an, oscillating mem ber, burners carried by said'member at opposite sides of said lam supports, and means for actuating said member.

9. In a sealing-in machine, the combination with a hollow standard, of a lampholder movably carried'thereby, and an oscillating burner-holder extending through said standard. a

10. In a sealing-in machine, the combination with a hollow standard, of a plurality of lamp holders rotatably mounted thereon, and an oscillating burner-holder extending through said standard.

11. In a sealing-in machine the combination with a hollow standard, of an oscillating member, a plurality of burner-holders carried by said member, one of said burner-holders extending through said standard, and a plurality of lamp-holders carried by said standard and adapted to be brought successively into the center of oscillation of said member.

12.' In a sealing-in machine, the combination with a hollow standard, ofan oscillating member, a plurality of burnereholders carried by said member, one of said burner-holders extending through said standard, a plurality of lamp-holders rotatably mounted on said standard and adapted to be brought successively into the center of oscillation of said member, and means for raising and lowering said lamp-holders.

In testimony whereof I have hereunto set my hand and afiixed my seal in the presence of the two subscribing witnesses.

HUGH G. FERGUSON. [L. s.]

Witnesses:

JAMES H. BnYsoN, BENNET'IE PIKE.

that in my inyention the neck of the lamp is subjected to an evenly-distributed heat by means of the oscillating burner, while the rods 16, supporting the lamp-frame, are not subjected to the flame, the oscillation of the burners being insufficient in extent to include Having fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is i 1. The combination with a lamp-holder, of heat-applying means mounted to oscillate about said holder;

2. The combination with a lamp-holder, of a burner mounted to oscillate about said holder.

3. The combination with a lamp-holder, of a plurality of burners mounted to oscillate about said holder, and means for actuating said burners.

4. The combination with a lamp-holder, of an oscillating member adjacent thereto, burners carried by said member at opposite sides of said holder, and means for actuating said member.

5. The combination with a movably mounted lamp holder, of heat applying means mounted to oscillate about said holder.

6. The combination with a movablymounted lamp holder, of a plurality of burners mounted to oscillate about said holder, and means for actuating said burners.

7. The combination with a movablymounted support, of a plurality of lampholders carried thereby, and a burner mounted to oscillate about said holders.

8. The combination with a rotatablymounted support, of a plurality of lamp 

